Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||
| Increase (decrease) through exercise of options, equity |
22,200,000
GBP
|
6,200,000
GBP
|
–
GBP
|
6,200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
16,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
21,700,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
6,200,000
GBP
|
6,200,000
GBP
|
15,500,000
GBP
|
| Decrease (increase) through tax on share-based payment transactions, equity |
–
GBP
|
4,600,000
GBP
|
–
GBP
|
4,600,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4,600,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
7,600,000
GBP
|
7,600,000
GBP
|
7,600,000
GBP
|
| Purchase of treasury shares |
34,400,000
GBP
|
34,400,000
GBP
|
–
GBP
|
34,400,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
25,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
25,500,000
GBP
|
25,500,000
GBP
|
–
GBP
|